Prabhakar A R, Mahantesh T, Ahuja Vipin
Department of Pedodontics and Preventive Dentistry, Bapuji Dental College and Hospital, Davangere, Karnataka, India.
J Dent Child (Chic). 2010 May-Aug;77(2):66-71.
The purpose of this study was to evaluate the efficacy of banding cements in terms of retentive capability and demineralization inhibition potential.
We included 48 non-carious primary mandibular second molar teeth. Preformed stainless steel bands were adapted onto the teeth. All teeth were randomly assigned to four groups: Group I (Adaptation of bands without cementation), Group II (Cementation of bands using conventional Glass Ionomer Cement), Group III (Cementation of bands using Resin-modified Glass Ionomer Cement), Group IV (Cementation of bands using Resin cement), and placed in artificial saliva. Each day, specimens were taken from artificial saliva and suspended in an artificial caries solution for 35 minutes, every 8 hours. At the end of 3 months, retention of bands was estimated using an Instron Universal Testing Machine. The mode of failure was recorded and specimens were sectioned and examined under polarized microscope for demineralized lesions.
The mean retention value was highest with resin cement, followed by RMGIC, GIC, and Control group respectively. The RMGIC group showed more favorable modes of failures. All the experimental groups showed significant demineralization inhibition potential.
RMGIC is the preferable banding cement and can be used effectively to cement bands in primary dentition.
本研究旨在评估带环粘结剂在固位能力和脱矿抑制潜力方面的疗效。
我们纳入了48颗无龋的下颌第一乳磨牙。将预成不锈钢带环适配到牙齿上。所有牙齿随机分为四组:第一组(带环适配但未粘结),第二组(使用传统玻璃离子水门汀粘结带环),第三组(使用树脂改性玻璃离子水门汀粘结带环),第四组(使用树脂粘结剂粘结带环),并置于人工唾液中。每天每隔8小时从人工唾液中取出标本,置于人工龋溶液中35分钟。3个月结束时,使用英斯特朗万能试验机评估带环的固位力。记录失败模式,将标本切片并在偏光显微镜下检查脱矿病变。
树脂粘结剂的平均固位值最高,其次分别是树脂改性玻璃离子水门汀、玻璃离子水门汀和对照组。树脂改性玻璃离子水门汀组显示出更有利的失败模式。所有实验组均显示出显著的脱矿抑制潜力。
树脂改性玻璃离子水门汀是更优的带环粘结剂,可有效用于乳牙列带环的粘结。